A race car, moves at a constant speed around an oval track. Is the car accelerating? Why or why not?
Science - bobpursley, Saturday, February 23, 2013 at 8:15pm
if it is changing direction, or speed, it is accelerating.
Science - Anonymous, Sunday, October 25, 2015 at 1:56pm
the car accelerates at point b
Science - Khaled, Sunday, March 13, 2016 at 4:48pm
It is accelerating. Otherwise, it would be moving in a straight line. As long as there's a change in direction, there's acceleration. What we have here is that the magnitude of the velocity (speed) is constant, but the direction keeps changing over time. The only difference between moving at a constant speed around a circle and around an oval track is the constancy of the acceleration: we have constant rate of change in direction (thus velocity) when moving in a circle, and inconstant acceleration when moving in an oval track.